Micro pH electrode assembly for wire transmission
First Claim
1. A dental assembly useful for the wire transmission measurement of oral cavity fluids'"'"' ionic changes by attachment to an existing tooth, comprising:
- A. a dental assembly housing, said housing having a bottom, an opposed pair of end faces, a curvilinear surface, and an axial bore having a first aperture on one end face and a second aperture on the other end face;
B. an ionic indicator electrode assembly comprising;
a tubular housing having a first and a second opposed pair of open ends and wherein the housing is of heat shrunken material;
a cylindrical indicator electrode which is responsive to changes in ionic activity, said indicator electrode including an electrode stem and wherein the electrode is positioned within the tubular housing proximate the first end of the tubular housing defining an annular space therebetween;
a first means for sealing the electrode to the tubular housing against moisture migration;
an electrically conductive cylindrical plug positioned proximate the second end of the tubular housing, said plug having a means for electrically connecting the transmission wire to the plug;
a second means for sealing the plug to the tubular housing against moisture migration;
a third means for sealing the transmission wire to the plug against moisture migration;
a means for electrically connecting the indicator electrode to the plug;
wherein the ionic indicator electrode assembly is positioned within the axial bore such that the first end of the housing is proximate the aperture of one end face; and
;
a means for fixedly attaching the dental housing to the tooth.
1 Assignment
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Accused Products
Abstract
Miniature pH indicator electrode assemblies (e.g., 10 mm. length) are provided for wire transmission. Also provided are dental assemblies containing such pH indicator electrode assemblies. The pH indicator electrode assemblies comprise micro pH indicator electrodes, wire transmission connector plugs, and heat shrinkable plastic housings. A moisture and ion impermeate, plastic seal intermediate the housing and both the electrode and the plug prevents moisture penetration therein. Dental assemblies containing such pH electrode assemblies are useful for the continuous measurement by wire transmission of pH changes in oral cavity fluids at both specific and non-specific sites.
149 Citations
30 Claims
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1. A dental assembly useful for the wire transmission measurement of oral cavity fluids'"'"' ionic changes by attachment to an existing tooth, comprising:
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A. a dental assembly housing, said housing having a bottom, an opposed pair of end faces, a curvilinear surface, and an axial bore having a first aperture on one end face and a second aperture on the other end face; B. an ionic indicator electrode assembly comprising; a tubular housing having a first and a second opposed pair of open ends and wherein the housing is of heat shrunken material; a cylindrical indicator electrode which is responsive to changes in ionic activity, said indicator electrode including an electrode stem and wherein the electrode is positioned within the tubular housing proximate the first end of the tubular housing defining an annular space therebetween; a first means for sealing the electrode to the tubular housing against moisture migration; an electrically conductive cylindrical plug positioned proximate the second end of the tubular housing, said plug having a means for electrically connecting the transmission wire to the plug; a second means for sealing the plug to the tubular housing against moisture migration; a third means for sealing the transmission wire to the plug against moisture migration; a means for electrically connecting the indicator electrode to the plug; wherein the ionic indicator electrode assembly is positioned within the axial bore such that the first end of the housing is proximate the aperture of one end face; and
;a means for fixedly attaching the dental housing to the tooth. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A dental assembly for the measurement of oral cavity fluids'"'"' ionic changes by connection with a transmission wire by insertion into the abscess between a pair of unextracted teeth remaining from a missing tooth, comprising:
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A. a dental assembly housing having a bottom surface, a top surface, a plurality of sidewalls;
a first passageway in a sidewall and a second passageway in a sidewall; andB. an ionic indicator electrode assembly, comprising; a tubular housing having a first and a second opposed pair of open ends wherein the housing is of heat shrunken material; a cylindrical indicator electrode which is responsive to changes in ionic activity, said indicator electrode including an electrode stem, and wherein the electrode is positioned within the tubular housing proximate the first end of the tubular housing defining an annular space therebetween; a first means for sealing the electrode to the tubular housing against moisture migration; an electrically conductive cylindrical plug positioned proximate the second end of the tubular housing;
said plug having a means for electrically connecting the transmission wire to the plug;a second means for sealing the plug to the tubular housing against moisture migration; a third means for sealing the transmission wire to the socket against moisture migration; a means for electrically connecting the indicator electrode to the plug; and wherein the ionic indicator electrode assembly is positioned within the housing with the first end of the tubular housing terminating proximate the exterior aperture of the first passageway and the second end of the tubular housing terminating proximate the exterior aperture of the second passageway; and securing means for anchoring the electrode assembly within the housing. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification